This portable, castable fish finder is designed for anglers who want sonar information without installing a wired transducer. The system includes a handheld display and a wireless sonar sensor, allowing use from shore, kayak, boat, or during ice fishing. The color TFT LCD screen features selectable black or white background modes to support visibility in bright sunlight or low-light conditions. The device displays water depth, water temperature, fish size indicators, fish depth, and bottom contour. Measurement units for depth and temperature can be adjusted. The wireless sonar sensor can be tethered to a fishing line and cast into open water, eliminating the need to drill or mount hardware to a boat hull. The maximum wireless range between the sensor and display is approximately 262 feet (80 meters). The sonar beam angle is 105 degrees, with a depth detection range of approximately 2.6 to 164 feet (0.8 to 50 meters). Both the display unit and sensor are rechargeable and designed for portable use. The device includes adjustable sensitivity and backlight brightness settings, along with work and simulation modes for familiarization. Key Features Castable, wireless sonar sensor Color TFT LCD display with selectable background modes Displays depth, temperature, fish size, fish depth, and bottom contour Adjustable depth and temperature units 105 sonar beam angle Wireless range up to approx. 262 ft (80 m) Rechargeable display unit and sensor Suitable for shore, kayak, boat, and ice fishing Specifications Display size: approx. 2.6 inches Depth range: 2.6?164 ft (0.8?50 m) Sonar beam angle: 105 Operating temperature: approx. 14F to 122F (-10C to 50C) Battery life (display): approx. 3?6 hours depending on backlight level Battery life (sensor): approx. 6?8 hours Included Components Handheld display unit Wireless sonar sensor USB charging cable for display USB charging cable for sensor Neck strap User manual Important Notes Designed for use in open bodies of water only Performance may be affected by strong waves, muddy water, or nearby high-power sonar devices Sensor surface should be kept clean for accurate readings Use Care Rinse sensor with clean water after use if exposed to debris. Dry thoroughly before storage. Avoid impact with hard surfaces. Here is a tightened, final, marketplace-ready version of your text, rewritten for clarity, flow, and mobile readability, while staying neutral, accurate, and compliant with your rules. Product Description This portable, castable fish finder provides sonar data without the need for a wired transducer or permanent installation. The system includes a handheld display and a wireless sonar sensor, allowing use from shore, kayak, boat, or during ice fishing. The color TFT LCD display offers selectable black or white background modes to support visibility in both bright sunlight and low-light conditions. The screen displays water depth, water temperature, fish size indicators, fish depth, and bottom contour. Depth and temperature units can be adjusted based on user preference. The wireless sonar sensor can be tethered to a fishing line and cast into open water, eliminating the need to drill or mount equipment to a boat hull. The sensor communicates with the display at distances of up to approximately 262 feet (80 meters). The sonar beam angle is 105 degrees, with a depth detection range of approximately 2.6 to 164 feet (0.8 to 50 meters). Both the display unit and sonar sensor are rechargeable and designed for portable use. Adjustable sensitivity and backlight brightness settings allow customization based on fishing conditions. The unit also includes work and simulation modes for familiarization. Key Features Castable, wireless sonar sensor Color TFT LCD display with selectable background modes Displays depth, temperature, fish size, fish depth, and bottom contour Adjustable depth and temperature units 105 sonar beam angle Wireless range up to approx. 262 ft (80 m) Rechargeable display unit and sensor Suitable for shore, kayak, boat, and ice fishing Specifications Display size: approx. 2.6 inches Depth range: 2.6?164 ft (0.8?50 m) Sonar beam angle: 105 Operating temperature: approx. 14F to 122F (-10C to 50C) Battery life (display): approx. 3?6 hours (depending on backlight level) Battery life (sensor): approx. 6?8 hours Included Components Handheld display unit Wireless sonar sensor USB charging cable for display USB charging cable for sensor Neck strap User manual Important Notes Designed for use in open bodies of water only Performance may be affected by strong waves, muddy water, or nearby high-power sonar devices Sensor surface should be kept clean for accurate readings Use Care Rinse the sensor with clean water after exposure to debris. Dry thoroughly before storage. Avoid impact with hard surfaces.